CN208946818U

CN208946818U - High-ductility resistance oxygen is protected from light packaging bag

Info

Publication number: CN208946818U
Application number: CN201821374413.6U
Authority: CN
Inventors: 陈万祥
Original assignee: HARBIN BOTAI PACKAGING Co Ltd
Current assignee: HARBIN BOTAI PACKAGING Co Ltd
Priority date: 2018-08-24
Filing date: 2018-08-24
Publication date: 2019-06-07
Anticipated expiration: 2028-08-24

Abstract

High-ductility resistance oxygen is protected from light packaging bag.Existing packaging bag all uses the form of single layer PE or composite construction, and such packaging bag is not protected from light, and the substance not being protected from light in packaging bag is apt to deteriorate, and oxygen resistance is poor, reduces effective period of food quality.The utility model includes: PE layers of two layers of co-extrusion (1), PVDC coating layer (2) and metal layer (5) is arranged between PE layers of co-extrusion two layers, and PE layers of co-extrusion (1) are formed by LLDPE, LDPE, EVA and metallocene blending extrusion.The resistance oxygen that the utility model is suitable for packaging bag is protected from light.

Description

High-ductility resistance oxygen is protected from light packaging bag

Technical field

The utility model relates to a kind of packaging bags, and in particular to a kind of high-ductility type resistance oxygen is protected from light packaging bag.

Background technique

Existing packaging bag all uses the form of single layer PE or composite construction, and such packaging bag is not protected from light, is not protected from light Substance in packaging bag is apt to deteriorate, and oxygen resistance is poor, reduces effective period of food quality.

Summary of the invention

The utility model is not protected from light to solve existing packaging bag, the high problem of oxygen permeating amount, provides and a kind of be protected from light, hinder oxygen High-ductility type resistance oxygen is protected from light packaging bag.

Above-mentioned purpose is realized by following scheme:

A kind of high-ductility type resistance oxygen is protected from light packaging bag, and composition includes: PE layers of two layers of co-extrusion (1), and two layers between PE layers of co-extrusion PVDC coating layer (2) and metal layer (5) be set, PE layers of co-extrusion (1) be by LLDPE, LDPE, EVA and metallocene blending extrusion and At.

The high-ductility type resistance oxygen is protected from light packaging bag, and metal layer (5) is vacuum aluminum-coated or vacuum copper facing

The described high-ductility type resistance oxygen is protected from light packaging bag, metal layer (5) with a thickness of 0.01-0.1um.

The described high-ductility type resistance oxygen is protected from light packaging bag, PVDC coating layer (2) with a thickness of 0.1-10 μm.

Beneficial effect

1. the utility model can achieve the effect for being protected from light and hindering oxygen, oxygen flow using setting PVDC coating layer and metal layer Reachable 8cc/ (m2 day) is measured hereinafter, PE layers of two layers of co-extrusion is arranged simultaneously, wearability, the protection of PVDC coating layer can be protected The corrosion resistance of metal layer also can guarantee packaging film product intensity, be resistant to 90 DEG C/30min boiling.

Detailed description of the invention

Attached drawing 1 is the first structural schematic diagram of the utility model；

Attached drawing 2 is second of structural schematic diagram of the utility model；

Attached drawing 3 is the third structural schematic diagram of the utility model；

Attached drawing 4 is the 4th kind of structural schematic diagram of the utility model；

Attached drawing 5 is the 5th kind of structural schematic diagram of the utility model；

Attached drawing 6 is the 6th kind of structural schematic diagram of the utility model；

In figure: 1, co-extrusion PE layers；2, PVDC coating layer；3, pattern printed layers；4, glue layer；5, metal layer.

Specific embodiment:

In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, no For limiting the present invention.

Embodiment 1:

A kind of high-ductility type resistance oxygen is protected from light packaging bag, and composition includes: PE layers of two layers of co-extrusion (1), and two layers between PE layers of co-extrusion PVDC coating layer (2) and metal layer (5) be set, PE layers of co-extrusion (1) be by LLDPE, LDPE, EVA and metallocene blending extrusion and At, surface PE layers as barrier material and is protected from light material protection layer, interior co-extrusion PE layers as hot sealing layer, two layers between PE layers of co-extrusion PVDC coating layer is arranged as barrier layer as layer is protected from light in setting metal layer.

Coating layer hinders oxygen rate and is less than 8cc/ (m2 day), can effectively prevent the oxygen of the packaged film edible product such as dairy produce Change, is rotten, while can keep the fragrance of packaged film object that can not be lost, there is outstanding low permeability, barrier property and chemically-resistant Drug；PVDC is that a kind of barrier property is high, toughness is strong and low-temperature heat-sealing, heat-shrinkable and the good ideal packet of chemical stability Package material

The heat sealability of co-extrusion PE is good, and tensile break strength and elongation at break are big, and tensile strength is up to 25.5MPa；

Co-extrusion PE is blended by LLDPE, LDPE, EVA and metallocene, and tensile break strength and extension can be improved Rate, tensile strength can reach 300% up to 20MPa, elongation percentage.

Metal layer (5) is vacuum aluminum-coated or vacuum copper facing.

There is splendid metallic luster using vacuum aluminum-coated, it is seen that light reflectivity has good photophobism up to 97%, Preventing ultraviolet irradiation, extends the shelf-life of content, while improving the brightness of film.

Metal layer with a thickness of 0.01-0.1 μm.

The thickness of metal layer is set as 0.01-0.1 μm, while can playing the effect being protected from light, can be sealed with save the cost Mouth performance is good, and metal layer setting does not need good toughness between co-extrusion PE and PE layers of co-extrusion, and the toughness of packaging bag is mainly led to PE layers of co-extrusion is crossed to realize, metal layer primarily serves the effect being protected from light.

Coating layer with a thickness of 0.1-10 μm.

Coating layer (2) is located at the outside of metal layer (5), between PVDC coating layer (2) and metal layer (5) from inside to outside successively Glue layer (4) and pattern printed layers (3) are set.

Adhesive is Resin adhesive, and viscosity is high, peel strength with higher, heat resistance with higher and weather-proof Property, it can be adapted for different ambient temperature variations.

Embodiment 2:

The present embodiment the difference from embodiment 1 is that: PVDC coating layer (2) is located at the outside of metal layer (5), PVDC coating Glue layer (4) and pattern printed layers (3) are set gradually on layer (2).

Embodiment 3:

The present embodiment the difference from embodiment 1 is that: PVDC coating layer (2) is located at the outside of metal layer (5), PVDC coating Pattern printed layers (3) are set between layer (2) and metal layer (5), glue layer is set between PE layers of co-extrusion (1) and metal layer (5) (4).

Embodiment 4:

The present embodiment the difference from embodiment 1 is that: PVDC coating layer (2) is located at the inside of metal layer (5), PVDC coating Glue layer (4) are set between layer (2) and PE layers of co-extrusion (1) of inside, is arranged between metal layer (5) and PE layers of co-extrusion of outside and schemes Case printing layer (3).

Embodiment 5:

The present embodiment the difference from embodiment 1 is that: PVDC coating layer (2) is located at the outside of metal layer (5), glue layer (4) it is arranged between metal layer (5) and PE layers of co-extrusion (1) of inside, pattern printed layers (3) are arranged on external co-extrusion PE layer Portion.

Embodiment 6:

The present embodiment the difference from embodiment 1 is that: PVDC coating layer (2) is located at the outside of metal layer (5), glue layer (4) be arranged between metal layer (5) and internal PE layer of co-extrusion (1), pattern printed layers (3) be arranged in outside PE layers of co-extrusion and Between PVDC coating layer (2).

The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.

Claims

1. a kind of high-ductility resistance oxygen is protected from light packaging bag, composition includes: PE layers of two layers of co-extrusion (1), it is characterized in that: two layers PE layers of co-extrusion Between PVDC coating layer (2) and metal layer (5) are set.

2. high-ductility resistance oxygen according to claim 1 is protected from light packaging bag, it is characterized in that: metal layer (5) is vacuum aluminum-coated or true Empty copper facing.

3. high-ductility according to claim 1 resistance oxygen is protected from light packaging bag, it is characterized in that: metal layer (5) with a thickness of 0.01- 0.1um。

4. high-ductility according to claim 1 resistance oxygen is protected from light packaging bag, it is characterized in that: PVDC coating layer (2) with a thickness of 0.1-10μm。